She could ask all the questions or make all of the demands she wanted, that was why Tony was there and sitting attentively the way Pepper never manged to get him to be and Cassie never tried. Maybe that was why she looked so anxious. He shook his head at her own condemnation, trying to reassure her, "You picked the right one," because ultimately she had gone for her friends and they had come back with what they were looking for and Kate was safe and sound with the Avengers at the Raft. There were a hundred ways that could have gone worse.
"No, he's fine," Tony answered first, before Cassie had the chance to think too hard about it as he explained, "He chose to stay in the city with some more survivors, he checks in all the time." Why him, Tony didn't really understand. She could have asked about a hundred other people she saw every day, but maybe Cassie knew him well enough to know he'd rather not be trapped in the dark underground.